## Include files.

In order to use XML Security Library an application should include one or more of the following files:

- xmlsec/xmlsec.h - XML Security Library initialization and shutdown functions;

- xmlsec/xmldsig.h - XML Digital Signature functions;

- xmlsec/xmlenc.h - XML Encryption functions;

- xmlsec/xmltree.h - helper functions for XML documents manipulation;

- xmlsec/templates.h - helper functions for dynamic XML Digital Signature and XML Encryption templates creation;

- xmlsec/crypto.h - automatic XML Security Crypto Library selection.

If necessary, the application should also include LibXML, LibXSLT and crypto library header files.

Example 1. Example includes file section.

    #include <libxml/tree.h>
    #include <libxml/xmlmemory.h>
    #include <libxml/parser.h>

    #ifndef XMLSEC_NO_XSLT
    #include <libxslt/xslt.h>
    #endif /* XMLSEC_NO_XSLT */

    #include <xmlsec/xmlsec.h>
    #include <xmlsec/xmltree.h>
    #include <xmlsec/xmldsig.h>
    #include <xmlsec/xmlenc.h>
    #include <xmlsec/templates.h>
    #include <xmlsec/crypto.h>